Zobrazeno 1 - 10 of 125 pro vyhledávání: '"R R Almeida"'
1
Scaling Solutions of Wiggly Cosmic Strings
Autor: A. R. R. Almeida, Carlos Martins
Cosmic string networks form during cosmological phase transitions as a consequence of the Kibble mechanism. The evolution of the simplest networks is accurately described by the canonical Velocity Dependent One-Scale (VOS) model. However, numerical s
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::030bacb8c5d4eda4bcad556f2371b86d
http://arxiv.org/abs/2210.08467
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2
Endothelial inflammatory activation is related to myocardial perfusion disturbance in experimental chronic Chagas disease
Autor: D M Tanaka, C G Fabricio, J A Marin-Neto, A C L Barros-Filho, C D Lopes, L F L Oliveira, J Mejia, R R Almeida, S S Batah, S G Nekolla, M L Higuchi, E Cunha-Neto, A T Fabro, M M Romano, M V Simoes
Publikováno v: European Heart Journal. 43
Background Microvascular myocardial perfusion defect (MPD) is frequent in chronic Chagas cardiomyopathy (CCC) and may be involved in the pathophysiologic process that leads to left ventricular systolic dysfunction (LVSD). However, there is scarcity o
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::dda9b864e18d728dfabf2cae9cfacda8
https://doi.org/10.1093/eurheartj/ehac544.1692
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5
Isotope dilution gas chromatography - mass spectrometry for the development of certified reference material of ethyl carbamate in hydroalcoholic matrix
Autor: Eliane Cristina Pires do Rego, Marcos Paulo Vicentim, Anna Dandara Amorim Soares, Renato R. R. Almeida, Janaína Marques Rodrigues, Tânia Maria Monteiro
Publikováno v: Microchemical Journal. 147:497-506
Ethyl carbamate (EC) is a toxic organic contaminant naturally present in some foods and alcoholic beverages. In order to improve the reliability of EC analysis, certified reference materials (CRM) can be used by the laboratories for quality control a
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::8cb3c78d73cfa2ab20123832bde346f1
https://doi.org/10.1016/j.microc.2019.03.021
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7
Presence of excited electronic states on terbium incorporation in CaMoO4: Insights from experimental synthesis and first-principles calculations
Autor: Elson Longo, Renan Augusto Pontes Ribeiro, L.X. Lovisa, C. R. R. Almeida, Fabiana V. Motta, A.A.G. Santiago, Carlos A. Paskocimas, Mauricio R. D. Bomio, Sergio Ricardo de Lazaro, Marisa C. Oliveira, Ricardo L. Tranquilin
Publikováno v: Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
We present a combined experimental and theoretical study to understand the structure and electronic and optical properties of CaMoO4:xTb3+ (x = 1 mol%, 2 mol%, and 4 mol%) microspheres. The microspheres were prepared by ultrasonic spray pyrolysis and
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fdf270fe0abce66cccfcdd40df1acb8b
https://repositorio.ufrn.br/handle/123456789/32876
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8
Integration of experiment and computational modeling on the Tb doping process in CaMoO4 obtained by USP method: An efficient way to obtain photoluminescent materials
Autor: L.X. Lovisa, R.A.P. Ribeiro, C. R. R. Almeida, Elson Longo, Sergio Ricardo de Lazaro, A.A.G. Santiago, Carlos A. Paskocimas, Marisa C. Oliveira, Mauricio R. D. Bomio, Fabiana V. Motta, Ricardo L. Tranquilin
Publikováno v: ChemPhysChem.
In this paper, we present a combined experimental and theoretical study to disclose, the structure, electronic and optical properties of CaMoO 4 :xTb 3+ ( x = 1%, 2%, and 4%) microspheres. The microspheres were prepared by ultrasonic spray pyrolysis
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6d532e5e0ef25c160f5859a7a78e0eb1
https://doi.org/10.1002/cphc.202000064
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9
Photoluminescent properties of the Ba1−xZnxMoO4 heterostructure obtained by ultrasonic spray pyrolysis
Autor: Fabiana V. Motta, A.A.G. Santiago, C. R. R. Almeida, Ricardo L. Tranquilin, Rubens M. Nascimento, Elson Longo, Mauricio R. D. Bomio, Carlos A. Paskocimas
Publikováno v: Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
In this study, Ba1−xZnxMoO4 (x = 0, 0.25, 0.5, 0.75 and 1) microspheres were the first time described in the literature the by ultrasonic spray pyrolysis method. Powders were characterized by X-ray diffraction (XRD), scanning electronic microscopy
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b790dd6156f164c7cc8bb737548fabe6
https://doi.org/10.1016/j.ceramint.2017.11.161
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10
Understanding the White-Emitting CaMoO4 Co-Doped Eu3+, Tb3+, and Tm3+ Phosphor through Experiment and Computation
Autor: Ricardo L. Tranquilin, Marisa C. Oliveira, Elson Longo, Máximo Siu Li, Lourdes Gracia, Juan Andrés, Mauricio R. D. Bomio, Fabiana V. Motta, Carlos A. Paskocimas, C. R. R. Almeida, L.X. Lovisa
Publikováno v: Repositori Universitat Jaume I
Universitat Jaume I
Repositório Institucional da USP (Biblioteca Digital da Produção Intelectual)
Universidade de São Paulo (USP)
instacron:USP
Repositório Institucional da UFRN
Universidade Federal do Rio Grande do Norte (UFRN)
instacron:UFRN
In this article, the synthesis by means of the spray pyrolysis method, of the CaMoO4 and rare-earth cation (RE3+)-doped CaMoO4:xRE3+ (RE3+ = Eu3+, Tb3+, and Tm3+; and x = 1, 2, and 4% mol) compounds, is presented. The as-synthesized samples were char
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a72b0c89a8118941b89aeb3e1b387ef4
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